Home / 18,272.31-25,215.26-10,315.28

Finding the Fourth Proportional to 18,272.31, 25,215.26 and 10,315.28

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Solution

The fourth proportional to 18,272.31, 25,215.26 and 10,315.28 is: 14,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.31 : 25,215.26 = 10,315.28 : x
  2. Step 2: Convert to fraction form
    18,272.31/25,215.26 = 10,315.28/x
  3. Step 3: Cross multiply
    18,272.31x = 25,215.26 × 10,315.28
  4. Step 4: Simplify right side
    18,272.31x = 260,102,289.52
  5. Step 5: Solve for x
    x = 260,102,289.52/18,272.31
  6. Step 6: Final answer
    x = 14,234.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.